#bg{
    background-image: url(../img/lgbg.jpeg);
    background-size: 1600px 900px;
    background-repeat: no-repeat;
}
#b1{
    margin-left: 615px;
    color:#ffffff; 
    background-color: #ff9933;  
    font-size: 18px; 
    width:300px; 
    height: 35px; 
    border: 40px;
    border-radius: 5px;
    
}
#p1{
    margin-left: 270px;
    font-size: 25px;
    color: #ffffff;
}
#img1{
    width: 150px;
    height: 130px;
}
/*studentList的搜索按钮*/
.search_btn1{
    background-color:#99ccff;
    border-radius: 4px 4px 4px 4px;
    margin-left: -11px;
    width: 20px;
    height: 35px;
}

.tda{
    color: #000;
    text-decoration:none;
    font-family: Times;
    font-size: 15px;
    text-align:center;
}

.tra{
    magin-left:50px;
}

.spana{
    font-size: 20px;
}